Home / 18,869.12-26,039.04-10,485.44

Finding the Fourth Proportional to 18,869.12, 26,039.04 and 10,485.44

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Solution

The fourth proportional to 18,869.12, 26,039.04 and 10,485.44 is: 14,469.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.12 : 26,039.04 = 10,485.44 : x
  2. Step 2: Convert to fraction form
    18,869.12/26,039.04 = 10,485.44/x
  3. Step 3: Cross multiply
    18,869.12x = 26,039.04 × 10,485.44
  4. Step 4: Simplify right side
    18,869.12x = 273,030,791.58
  5. Step 5: Solve for x
    x = 273,030,791.58/18,869.12
  6. Step 6: Final answer
    x = 14,469.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.